Anomalous, chiral Lagrangians of pseudoscalar, vector, and axial-vector mesons generated from quark loops
- 1 July 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 32 (1), 266-275
- https://doi.org/10.1103/physrevd.32.266
Abstract
The authors’ previously reported approach of producing the purely pseudoscalar Wess-Zumino anomalous action from a quark-loop expansion is extended to include, also, hadronic spin-one fields and the photon. A line of argument is presented which links QCD to an effective-Lagrangian model of quarks with nonlinearly transforming pseudoscalar mesons and other composite bosons. Several methods of modeling vector and axial-vector hadronic currents are reviewed, and a novel nonlinear treatment of the axial-vector currents is also introduced. The inclusion of the spin-one sector in the loop calculations is described. The loop calculations of three- and four-point functions are developed. ω→3π is calculated and compared to experiment and to the results of other works.Keywords
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